Bridging-nitrogen defects modified graphitic carbon nitride nanosheet for boosted photocatalytic hydrogen production

Water oxidation of visible-light-responsive bismuth-yttrium oxychloride promoted by a dual-ion doping strategy for assembly of Z-scheme overall water splitting

“…500 nm) of the Br and Y co-doped sample exhibited the lowest photoluminescence (PL) intensities compared to those of the other three samples, confirming the inhibited radiative charge recombination after Br and Y co-doping. 36 The time-resolved photoluminescence spectra (TRPL) are further employed to study the charge carrier dynamics of the four typical samples. The τ avg value (average lifetime of the charge carriers) of Bi 1.2 Y 1.8 O 4 Cl 0.88 Br 0.12 is the longest (0.773 ns) compared with that of the other three samples (Fig.…”

Vacancy-modified g-C3N4and its photocatalytic applications

“…The bridging N defects greatly enhanced the photoabsorption and reduced the charge recombination in the bulk apart besides the enlarged surface area. 120 The as-prepared mesoporous, NH x vacancy-imbedded g-C 3 N 4 exhibited an enlarged specific surface area, considerably thinned NS morphology, extended visible light absorption, enhanced photoexcited charge separation and transfer, and, consequently, ∼6.3-fold improved photocatalytic H 2 evolution activity, compared with the bulk g-C 3 N 4 . 100…”

Semiconducting Polymers for Oxygen Evolution Reaction under Light Illumination

“…As a result, an optimal photocurrent density of 228.2 μA cm –2 was obtained at 1.23 V (vs RHE) under illumination by simulated sunlight. The improved performance reveals the importance of charge separation and transport for the M-PCN photoanode. − …”